The quality of formwork and the speed of installation (removal) directly affect the project quality and construction progress. The following table compares the performance indicators of several building forms:

Customized size

Performance	product type
	Plastic formwork	Aluminum formwork	All-steel formwork	Bamboo and wood glued formwork	Combined steel formwork	Wood template
Flame retardancy	Yes	Yes	Yes	No	Yes	No
Water absorption and deformation	Not suck  Not deformed	Not suck  Not deformed	Not suck  Not deformed	Water absorption  Easily deformed	Not suck  Not deformed	Water absorption  Easily deformed
Demolding process	easy	Moderate	Difficult	Moderate	Moderate	Moderate
Release agent	no	need	need	need	need	need
Corrosion resistance	excellent	good	good	good	good	good
repeat times	＞50	＞300	40	6~8	30~40	3~5
Recyclability	100% recycling	100% recycling	100% recycling	Not easy to recycle	Not easy to recycle	Not easy to recycle
Customized size	can	can	No	No	No	No

Bamboo and wood formwork, the number of turnover is relatively small, the plain wood and bamboo plywood formwork is generally used 3 to 5 times, the resource utilization rate is low, the waste is serious, the discarded formwork is difficult to recycle, and a large number of formwork accumulation will affect the construction management progress ; Steel formwork is used a lot, but the steel formwork has a large proportion, which is 6 to 8 times that of plastic formwork. It is difficult to construct and operate, and the maintenance cost after deformation is high, which slows down the progress of the project, extends the construction period, and increases the construction cost.
Plastic formwork is a new type of green construction material in the 21st century. It has excellent overall performance and has the following advantages:
1. High strength of plastic template. Impact resistance, toughness, nailing, sawing and drilling, tight splicing;
2. Light weight. Less labor is required for installation and disassembly, construction progress is faster, and the cost of formwork can be reduced;
3. The surface is smooth and clean. No mold release agent is needed, the surface is easy to clean, and the surface quality of the concrete can reach the effect of clear concrete;
4. High turnover. The number of plastic template turnovers can reach more than 50 times, and it can be used with steel (aluminum) frames for hundreds of times. The single-use cost is low, which can save about 50% than bamboo and wood glued templates;
5. Environmental protection without pollution. The discarded template can be 100% recycled, and the secondary template is made into a finished template with the same quality as the original template, which is energy-saving and environmentally friendly.

Next:Status of China\'s plastic formwork